Home / 20,453.76-28,225.52-11,501.04

Finding the Fourth Proportional to 20,453.76, 28,225.52 and 11,501.04

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Solution

The fourth proportional to 20,453.76, 28,225.52 and 11,501.04 is: 15,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.76 : 28,225.52 = 11,501.04 : x
  2. Step 2: Convert to fraction form
    20,453.76/28,225.52 = 11,501.04/x
  3. Step 3: Cross multiply
    20,453.76x = 28,225.52 × 11,501.04
  4. Step 4: Simplify right side
    20,453.76x = 324,622,834.54
  5. Step 5: Solve for x
    x = 324,622,834.54/20,453.76
  6. Step 6: Final answer
    x = 15,871.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.